Inclosed fuse.



F. P. POOLE.

INCLOSED FUSE.

APPLICATION FILED DEG.17,1908.

931,478. Patented Aug. 17, 1909.

"FA/E6656 wins/v 70/? UNITED STATEIS PATENT OFFICE.

FREDERICK P. POOLE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRYANTELECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF CON-NECTICUT.

INCLOS ED FUSE.

'Application filed December 17 1908. Serial No. 468,004.

To all whom it may concern:

Be it known that I, FREDERICK P.-Po0LE, a citizen of the United Statesof America,

and residing at Bridgeport, in the county of- Fairfield and State ofConnecticut, have inv ented a certain new and Improved Inclosed Fuse, ofwhich the following is a spec zilica- Fig. 2 is a transverse section onthe line 2-+2,

Fig. 1.

' 0 illustrate the invention I have shown a cartridge fuse having theusual sheathA B and rods C carryin buttons-c between which the fuse linkI) is mounted. The latter in its improved form is cut from thin sheetmetal from which holes (1 are punched to lessen the amount of metal at aconvenient fusing, point intermediate the ends of the link. The edges ofthe blank, length- Specification of Letters Patent.

Patented Aug. 17, 1909.

wise of its axis, are then rolled over to form, in cross section (seeFig. 2) a figure 8, thus inclosing two chambers to and which are sealedby the mounting of the link between the buttons 0. This form permits offilling these chambers with powders of different character or of thesame character but different from that which surrounds the link as awhole.

A fuse of this type is much more economically man actured than one inwhich. a plurality of dependent closed links are cmloyed, while securingthe advantages of the latter in the particulars mentioned.

I claim as my invention:

' An inclosed fuse having a sheath with conductors and between theconductors a link having its'edges lengthwise of its axis rolled up toform, in cross section, a figure 8, said conductors serving to close theends of the chambers in the link so-formed. In testimony whereof I havesigned my name to this specification, in the presence of two subscribingwitnesses.

FREDERICK P. POOLE. Witnesses-2 G. W. GOODRIDGE, H. W. GOLDSBOROUGH

